linux-kernel - [PATCH 2/4] perf hist: Remove formats in hierarchy when cancel latency

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Message-ID: <20250331073722.4695-3-namhyung@kernel.org>
Date: Mon, 31 Mar 2025 00:37:20 -0700
From: Namhyung Kim <namhyung@...nel.org>
To: Arnaldo Carvalho de Melo <acme@...nel.org>,
	Ian Rogers <irogers@...gle.com>,
	Kan Liang <kan.liang@...ux.intel.com>
Cc: Jiri Olsa <jolsa@...nel.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-perf-users@...r.kernel.org
Subject: [PATCH 2/4] perf hist: Remove formats in hierarchy when cancel latency

Likewise, it should remove latency output fields in hierarchy list.
Pass evlist to perf_hpp__cancel_latency() to handle them properly.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/builtin-report.c |  2 +-
 tools/perf/ui/hist.c        | 15 ++++++++++++++-
 tools/perf/util/hist.h      |  2 +-
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index c9138e1379808097..c207aaed7ae5fc2b 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1088,7 +1088,7 @@ static int __cmd_report(struct report *rep)
 	/* Don't show Latency column for non-parallel profiles by default. */
 	if (!symbol_conf.prefer_latency && rep->total_samples &&
 		rep->singlethreaded_samples * 100 / rep->total_samples >= 99)
-		perf_hpp__cancel_latency();
+		perf_hpp__cancel_latency(session->evlist);
 
 	evlist__check_mem_load_aux(session->evlist);
 
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 1d3f944ed35ed152..3ffce69fc823e0bf 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -739,9 +739,10 @@ void perf_hpp__cancel_cumulate(struct evlist *evlist)
 	}
 }
 
-void perf_hpp__cancel_latency(void)
+void perf_hpp__cancel_latency(struct evlist *evlist)
 {
 	struct perf_hpp_fmt *fmt, *lat, *acc, *tmp;
+	struct evsel *evsel;
 
 	if (is_strict_order(field_order))
 		return;
@@ -755,6 +756,18 @@ void perf_hpp__cancel_latency(void)
 		if (fmt_equal(lat, fmt) || fmt_equal(acc, fmt))
 			perf_hpp__column_unregister(fmt);
 	}
+
+	evlist__for_each_entry(evlist, evsel) {
+		struct hists *hists = evsel__hists(evsel);
+		struct perf_hpp_list_node *node;
+
+		list_for_each_entry(node, &hists->hpp_formats, list) {
+			perf_hpp_list__for_each_format_safe(&node->hpp, fmt, tmp) {
+				if (fmt_equal(lat, fmt) || fmt_equal(acc, fmt))
+					perf_hpp__column_unregister(fmt);
+			}
+		}
+	}
 }
 
 void perf_hpp__setup_output_field(struct perf_hpp_list *list)
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 8cc94928fcb35a5b..76efd8952507a561 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -582,7 +582,7 @@ enum {
 
 void perf_hpp__init(void);
 void perf_hpp__cancel_cumulate(struct evlist *evlist);
-void perf_hpp__cancel_latency(void);
+void perf_hpp__cancel_latency(struct evlist *evlist);
 void perf_hpp__setup_output_field(struct perf_hpp_list *list);
 void perf_hpp__reset_output_field(struct perf_hpp_list *list);
 void perf_hpp__append_sort_keys(struct perf_hpp_list *list);
-- 
2.49.0